from flask import Flask
from flask import render_template,g
import os

# 保证能引用core的模块
import sys
sys.path.append('../')
from core.pre_load import *

def create_app(test_config=None):
    # create and configure the app
    app = Flask(__name__, instance_relative_config=True)
    app.config.from_mapping(
        SECRET_KEY='dev',
        DATABASE=os.path.join(app.instance_path, 'ques.sqlite'),
    )

    if test_config is None:
        # load the instance config, if it exists, when not testing
        app.config.from_pyfile('config.py', silent=True)
    else:
        # load the test config if passed in
        app.config.from_mapping(test_config)

    # ensure the instance folder exists
    try:
        os.makedirs(app.instance_path)
    except OSError:
        pass

    # a simple page that says hello
    '''预加载数据'''
    @app.route('/')
    def home():
        return render_template('home.html')
    from . import ques
    app.register_blueprint(ques.bp)
    
    return app

